JPS6013416A - Offset supporting device of cable - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an offset support device for laying a cable such as a power supply cable along a suspension bridge or the like.

Generally, when constructing a large bridge such as a suspension bridge, sliding spaces are provided at both ends of the bridge to absorb changes in load during vehicle traffic and temperature changes due to seasonal changes. Also, an offset portion is provided in order to follow the bridge that expands and contracts due to the above changes.

In forming such an offset part, as shown in FIG.
Set part, set b', and add these two? J b , l)'
, there is a connecting body e consisting of a center link C and side links d and d' pivotally connected to both ends of the center link C.
The ends of the side links d and d' are pivotally connected to the respective installation parts b' and the center link C of the EV assembly e. The center link C moves in parallel along the axis O in the cable installation direction, and moves toward and away from the axis O.
A guide means f is provided, and an offset portion consisting of a curved shape etc. of the cable g laid across both the laying portions b1 and b' is fixed to the center link C and both side links d and d' of the connecting body e. Some cables are constructed in such a way that deformation of the offset portion due to longitudinal fluctuations of the installation location can be always controlled to a good curved state.

However, in such a device, since the relative movement of the installation parts b and b' is handled by tilting the connecting body e, it is difficult to apply it to a long suspension bridge, etc., where the above-mentioned movement amount can reach about 1.5 m. If this is installed, there is a problem that the connecting body e becomes large and requires a large installation space, and the device is a link mechanism consisting of the connecting body e and the guide means f. Since the structure is complicated, installation is troublesome and costs are high.

The present invention solves the above-mentioned conventional difficulties, and provides a cable offset support device that requires a small installation space, can accommodate a large amount of movement of the laying part, has a simple structure, and can be laid easily and inexpensively. That is its purpose.

The drawings showing one embodiment of the present invention will be described in detail below. In FIGS. 2 and 3, the installation location 1 in the longitudinal direction
is provided with a pair of laying parts 3.4 which are separated by a sliding space 2 in a direction intersecting the longitudinal direction and are relatively movable.

Support bases 7.8, each supporting a capstan drum 5.6, are arranged to face each other in both of the installation parts 3.4. 9. A plurality of drums 10 (three in the illustrated example)
．． 10... can rotate freely with respect to each other.
The cab drive drums 6.6 are each pivotally supported by a support base 7.8 by its rotating shaft 11.

The support base 7.8 includes a pair of support parts 7a, 7b18a, 8b disposed on both sides of the capstan drum 6.6.
As shown in FIG. 4, each of these supporting parts has a main column 13 standing vertically in the center of a leg 12 made of a mouth-shaped pipe, etc., and the main column 13 is inclined from the leg 12. It is supported by left and right side pillars 14 and 14 erected in the shape of
The rotating shaft 1 is located between the upper ends of the two opposing main columns 13 and
1 has been constructed.

One of these support bases 7.8 has its legs 12.8.
The laying section 3 is erected and fixed at 12, and the other support base 8 is attached to its legs 12 as clearly shown in FIG.
．． 12 is placed in contact with a base member 16.16 having a U-shaped cross section laid and fixed to the laying part 4, and is installed so as to be slidable in the longitudinal direction.

Further, both support bases 7.8 are supported by a pair of telescopic cylinders 16, 16 that are freely expandable and retractable in the longitudinal direction.
a, 7b, 8b are connected to each other, and the telescopic cylinder 1
6 consists of a pair of inner and outer pipes 17.1B that are fitted relative to each other so as to be slidable in the longitudinal direction, and the outer pipe 18 has its base end connected to one end of the main column 13-1 of the support base 7, that is, the capstand. It is fixed to the shaft support part of the ram 6, and
The longitudinal center portion of the inner pipe 17 is fixed to the upper end of the main column 13 of the support base 8, and the base end portion of the inner pipe 17 is horizontally supported by a frame member 19 erected on the base member 15. It is fitted and supported by an end support pipe 2o.

An elastic body 21 is attached to the telescopic cylinders 16, 16, and this elastic body 21 applies an elastic force to the cylinders in the direction of extension.
1 is housed in the outer pipe 18 in a compressed state, and one end thereof is fixed near the proximal end of the outer pipe 18, while the other end is fitted into the outer vibrator 18. It is fixed to the tip of the inner vibrator 17, and the inner and outer vibrator 17.
18 is biased with elastic force in the direction of extension.

Furthermore, a cable 22 is laid between the two cab drums 5.6 and extends over both the laying sections 3.4, and as shown in FIGS. Ram 6.6 each drum 10.1
0.... The cables 220 are laid one time alternately in between, and both cables 220 are secured to both laying portions 3 with restraint cleats (not shown) or the like.
．． Each is fixed at 4.

Next, to explain the operating state of the device configured as described above, the installation location 1 shown in the drawing has one or both installation sections 3.4 extending in the longitudinal direction of the installation location 1, which is also the longitudinal direction of the cable 22 to be installed. However, in this state, if the two laying sections 3.4 come together due to changes in load, etc., and move toward or away from each other, the laying sections 3.4
Since the support base 7.8 of the surface support base 3.8 moves in the same way, for example, if the two laying parts 3.4 are separated, the distance between the two ends of the cable 22 increases, so that the tension of the cable 22 causes the surface support base 3. 4 approaches against the force of the projectile 21,
If the cable 22 that is hung between the two cabzundrums 6.6 is pulled out and the two laying parts 3.4 are brought closer together, the distance between the two ends of the cable 220 becomes smaller.
The surface support base 3.4 is raised to a height of 11 by the elastic force of the elastic body 21.
In the meantime, the cable 22 that is close to the two cab drums 6.6 is wound up so as to correspond to the movement of the two installation parts 3.4.

5 and 6 show another embodiment of the capstan drum 6.6, the other members being the same as the embodiment shown in FIGS. 2 and 3, and the capstan drum 6.6. 5' and 6' are formed with a series of grooves 23 on their circumferential surfaces to enable the cable 22 to be wound multiple times in a spiral manner.

As explained above, the present invention allows the installation location in the longitudinal direction to be
A pair of relatively movable installation sections are provided which are separated by a sliding space in a direction intersecting the longitudinal direction, and supporting bases that support the capstan drum pivotably are disposed oppositely in both installation sections. The support base is fixedly installed on the installation part, and the other support base is installed on the installation part so as to be slidable in the longitudinal direction, and the surface support base is connected by a telescoping cylinder that can be expanded and contracted in the longitudinal direction. At the same time, an elastic body is attached to the extensible cylinder to apply an elastic force in the direction of extension to the cylinder, and a part of the cable laid between the capstan drums is connected to the kawaguchi. Because of this, the installation space is small, and the installation part can handle a large amount of movement, and the structure is simple, making installation easy and inexpensive, especially when the installation is subject to frequent expansion and contraction due to changes in load during vehicle traffic. Suitable for installation locations.

[Brief explanation of the drawing]

Figure 1 is a front view showing a conventional offset support device, Figure 2 is a front view showing a conventional offset support device;
3 and 3 are front and plan explanatory views, respectively, showing one embodiment of the device of the present invention, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2, and FIGS. 5 and 6 are views of the same device. FIG. 7 is an explanatory front view and a plan view showing another embodiment. 1... Laying location 2... Sliding space 3.4... Laying portion 6.6 --... Capstan drum 7.8... Support base 16. ...Extendable cylinder 21 ... Bullet body 22, ... 0 cable

Claims (3)

[Claims] (1) A pair of relatively movable laying sections are provided by dividing the longitudinal installation point by a sliding space in a direction intersecting the longitudinal direction, and a capstan drum is attached to both of these sections with QI+ support. The supporting bases are arranged opposite to each other, one of the support bases is fixed to the installation part of the support base, and the other support base is installed to the installation part of the support base so as to be slidable in the longitudinal direction,
Both support bases are connected by a telescoping cylinder that can be expanded and contracted in the longitudinal direction, and an elastic body that applies an elastic force to the cylinder in the extension direction is engaged with the telescoping cylinder, and both capstands are attached to each other. A cable offset support device that wraps a portion of the cable that is laid across both installations between the rams. (2) Capstan drums can rotate freely relative to each other 1
The cable offset support device according to claim 1, which comprises a plurality of connected drums. (3) The cable offset support device according to claim 1, wherein the capstan drum has a series of grooves on its circumferential surface that allow the cable to be wound multiple times in a spiral shape.